*{
    margin:0;
    padding:0;
}
body {
    background-color: #dad9d9; /* 使用十六进制颜色码定义浅灰色背景 */
    margin: 0; /* 清除默认的页面边距 */
    padding: 0; /* 清除默认的页面内边距 */
    font-family: Arial, sans-serif; /* 设置页面默认字体 */
    overflow-y: hidden;
}
.map{
    width: 650px;
    height: 350px;
}

.left{
    width: 400px;
    height: auto;
}
.control-center{
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    margin-top:20px;
}
.media-live{
    width: 800px;
    height: 600px;
    margin: 20px auto;
}
.graph{
    width: 650px;
    height: 350px;
}